Latent heat of ice is $80 \, cal/g$. $A$ man melts $60 \, g$ of ice by chewing in $1 \, minute$. His power is ........ $W$.

The graph shows the variation of temperature $(T)$ of one kilogram of a material with the heat $(H)$ supplied to it. At $O$,the substance is in the solid state. From the graph,we can conclude that

If water at $0\,^{\circ}C$ kept in a container with an open mouth is placed in a large evacuated chamber,what will happen?

At $100^{\circ}C,$ the substance that causes the most severe burn is:

Explain the process of melting of ice with an explanation of freezing,melting,and melting point.

$A$ metallic ball and a highly stretched spring are made of the same material and have the same mass. They are heated so that they melt. The latent heat required: